POWER OUTPUT: 50 watts per channel continuous from 20Hz to 20kHz. 1kHz total
harmonic distortion typically 1% at 50 watts, below .05% at 1 watt.
Approximate actual power available at "clipping" 52 watts (1kHz). (Note that actual power output is dependent upon both line voltage and "condition" i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.)
POWER BANDWIDTH: (-3dB points) 15Hz to 40kHz.
FREQUENCY RESPONSE: (-3dB points at 1 watt) 3Hz to 40 kHz.
INPUT SENSITIVITY: 1.05V RMS for rated output.
INPUT IMPEDANCE: 100K ohms unbalanced.
OUTPUT REGULATION: Approximately 0.6dB 16 ohm load to open circuit (Damping factor approximately 14).
OVERALL NEGATIVE FEEDBACK: 19dB.
SLEW RATE: 7 volts/microsecond.
RISE TIME: 10 microseconds.
HUM & NOISE: Less than 0.5mV RMS - 95dB below rated output (IHF weighted, input shorted).
POWER SUPPLY ENERGY STORAGE: Approximately 184 joules.
POWER REQUIREMENTS: 105-125VAC 60Hz (210-250VAC 50Hz) 265 watts at rated output,
300 watts maximum, 175 watts at "idle".
TUBES REQUIRED: 2 - Matched pair 6550B - Power Output; 2 - 6922 Driver; 1 - 6922 input.
DIMENSIONS (VT60): 14" (35.6 cm) W x 7" (17.8 cm) H x 13.3" (33.8 cm) D. Output connectors extend 1" (2.5 cm) to the rear.
WEIGHT (VT60): 33 lbs. (15.0 kg) Net; 47 lbs. (21.4 kg) Shipping.
Specifications subject to change without notice.